“Back in June, Facebook had 8 initial FBX partners (not to be confused with the infamous Fox River Eight); now the list is up to 15. The full list follows with asterisks affixed to the original partners: AdRoll*, AppNexus*, Criteo, DataXu*, Kenshoo, MediaMath*, Nanigans, Optimal, RocketFuel, Tellapart*, TheTradeDesk*, Triggit*, Turn*, Xaxis and x+1. Adweek spoke with seven of the partners about their experiences with FBX so far.”